Note: Where applicable, units of the solution must be correct for full credit.
1.2 Which are peer layers?
1.3 If the unit exchanged at the network interface layer (layer 2) is called a frame and the unit exchanged at the internet layer (layer 3) is called a packet,
__B____ Process to process communication
__A____ Interacts with the user
__E_____ Encodes data using physical phenomena, such as changing voltage
__C____ Host to host communication
__D_____Sends a frame through a single local area network
__D____ Uses physical (MAC) addresses in the header
__C____ Uses IP addresses in the header
__B____ Uses protocol ports in the header
((B + C + D + E) / (A + B + C + D + E)) * 100 %
(B / (A + B)) * 100 %
5.1 A signal has 100 possible levels. This signal is
5.2 As the period of a sine wave increases, the frequency __________________ .
5.3 A possible unit for analog bandwidth is bits per second.
5.4 A simple sine wave is created by adding multiple composite signals together.
__D____ The difference between the high frequency and the low frequency
__B____ The number of cycles per second
__C____ The absolute value of the peak value
__A_____ The time for one cycle
s(t) = 4sin (2πt + π)
3/2 π; 0 or 2π; π
= 0.2 microseconds
= 250 Hz = 0.25 KHz (is the unit for this answer supposed to be in Hz or KHz?)
f(t) = 2sin(2π5t) + 3sin(2π7t) + 4sin(2π9t)
Analog bandwidth = fhigh – flow = 9 Hz – 5 Hz = 4 Hz
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